How come just a 2 degrees increase of body temperature can make you feel so fatigue and like you’re dying?

Question

It doesn’t seem like a huge difference to me but even a 1 degree increase of body temp can make you so tired and have fever. Why is that?

In: 2376

Answer 1

I feel like a lot of good answers have been given but one thing I want to add:

The reason a high fever is dangerous is because cells in the human body start to die at temperatures above 42°C so when you have a fever of or above 40°C cells start to approach the temperature at which they can be damaged and begin to die.